Scheduling with time clock controls turns lights on and off, sets lighting levels for different times of day and changes the lighting profile for after-hours mode. More sophisticated systems also respond to signals sent from external control devices such as sensors or switches.
Paraffin wax is a solid form of paraffin, a specific type of alkane hydrocarbon. It is used in a wide range of everyday applications, most notably in common candles. This wax also sees a great deal of use in industrial applications, and it is present in everything from the Lunar Rover to drywall.araffin wax is a solid form of paraffin, a specific type of alkane hydrocarbon. It is used in a wide range of everyday applications, most notably in common candles. This wax also sees a great deal of use in industrial applications, and it is present in everything from the Lunar Rover to drywall.
paraffin - a series of non-aromatic saturated hydrocarbons with the general formula CnH(2n+2) alkane, alkane series, methane series, paraffin series. aliphatic compound - organic compound that is an alkane or alkene or alkyne or their derivative. butane - occurs in natural gas; used in the manufacture of rubber and fuels.